Afrikaner friend is posting about how families leaving South Africa for the USA look like evil rednecks and obviously stupid. Other friends are chiming in how Trump is sending away Afghanistan refugees and that they're the wrong color, and that's why.
Then the English friends are posting about how Afghanistan being a terrible place and sending people back is a terrible thing. Meanwhile South Africa is a great place and no evil horrible thing is happening.
It's been going like this all day.
Despite the Yankees and Media trying to use all these terms as meaning the same thing they do all have wildly different meanings.
Redneck, and white trash, are the only ones with general enough meanings that they are usually accurate subjectively, but they will happily throw in shit like hillbilly about someone from a fucking swamp.